#include<bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
const int mod=998244353,inf=0x3f3f3f3f3f3f3f3f;
const int N=2e5+10,M=2e5+10;
mt19937 rnd(time(0));
signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0),cout.tie(0);
//	freopen("water.in","r",stdin);
//	freopen("water.out","w",stdout);
	return 0;
}


